The figure shows a parallelogram. Find
- ∠h
- ∠g
- ∠f
(a)
∠JNK
= 180° - 39° - 60°
= 81° (Angles sum of triangle)
∠h = ∠JNK = 81° (Vertically opposite angles)
(b)
∠g = ∠JIK = 64° (Alternate angles)
(c)
∠KNJ = ∠h = 81° (Vertically opposite angles)
∠f
= 81° - 64°
= 17° (Exterior angle of a triangle)
Answer(s): (a) 81°; (b) 64°; (c) 17°